CVE-2015-4170 (GCVE-0-2015-4170)
Vulnerability from cvelistv5 – Published: 2016-05-02 10:00 – Updated: 2024-08-06 06:04
VLAI
EPSS
VEX
Summary
Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.
Severity
4.7 (Medium)
CWE
- n/a
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1218879 | x_refsource_CONFIRM |
| http://git.kernel.org/cgit/linux/kernel/git/torva… | x_refsource_CONFIRM |
| http://www.oracle.com/technetwork/topics/security… | x_refsource_CONFIRM |
| https://github.com/torvalds/linux/commit/cf872776… | x_refsource_CONFIRM |
| http://www.openwall.com/lists/oss-security/2015/05/26/1 | mailing-listx_refsource_MLIST |
| https://www.kernel.org/pub/linux/kernel/next/patc… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2016:1395 | vendor-advisoryx_refsource_REDHAT |
| http://www.securityfocus.com/bid/74820 | vdb-entryx_refsource_BID |
Date Public
2015-05-26 00:00
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"url": "https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2015/05/26/1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/74820"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://access.redhat.com/errata/RHSA-2016:1395"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"VDB Entry"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1218879"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-362"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T08:26:42+00:00",
"cve": "CVE-2015-4170",
"id": "CVE-2015-4170",
"initial_release_date": "2015-01-19T00:00:00+00:00",
"product_status:fixed": "293",
"product_status:known_affected": "12",
"product_status:known_not_affected": "27",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: pty layer race condition on tty ldisc shutdown.",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2015/cve-2015-4170.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "low",
"current_release_date": "2025-08-02T23:29:24Z",
"cve": "CVE-2015-4170",
"id": "CVE-2015-4170",
"initial_release_date": "2023-02-15T05:18:12Z",
"product_status:recommended": "12",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2015-4170",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2015-4170.json",
"version": "7"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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